Replace chromeos::UserManager::Get() with chromeos::GetUserManager().

chrome/browser/metrics/chromeos_metrics_provider.cc

Index: chrome/browser/metrics/chromeos_metrics_provider.cc
diff --git a/chrome/browser/metrics/chromeos_metrics_provider.cc b/chrome/browser/metrics/chromeos_metrics_provider.cc
index ef732c016ce1e2f52b8a95e2ba27fd92320e030f..ae84844fd79ea3d8f896c6b016c197aef0a8c3df 100644
--- a/chrome/browser/metrics/chromeos_metrics_provider.cc
+++ b/chrome/browser/metrics/chromeos_metrics_provider.cc
@@ -131,7 +131,7 @@ void ChromeOSMetricsProvider::OnDidCreateMetricsLog() {
   if (chromeos::UserManager::IsInitialized()) {
     registered_user_count_at_log_initialization_ = true;
     user_count_at_log_initialization_ =
-        chromeos::UserManager::Get()->GetLoggedInUsers().size();
+        chromeos::GetUserManager()->GetLoggedInUsers().size();
   }
 }
 
@@ -270,7 +270,7 @@ void ChromeOSMetricsProvider::WriteBluetoothProto(
 void ChromeOSMetricsProvider::UpdateMultiProfileUserCount(
     metrics::SystemProfileProto* system_profile_proto) {
   if (chromeos::UserManager::IsInitialized()) {
-    size_t user_count = chromeos::UserManager::Get()->GetLoggedInUsers().size();
+    size_t user_count = chromeos::GetUserManager()->GetLoggedInUsers().size();
 
     // We invalidate the user count if it changed while the log was open.
     if (registered_user_count_at_log_initialization_ &&